Rainfall - GCSE Geography Definition

Rainfall is the amount of water that falls from the sky as rain, which is a type of precipitation. It happens when clouds full of water droplets become heavy and the water falls to the ground. There are three main types of rainfall: relief rainfall, convectional rainfall and frontal rainfall. Rainfall is measured in millimetres and is important for providing plants with the water they need to grow. It also fills rivers and lakes, and affects weather patterns and climates around the world. In Geography, understanding rainfall helps students learn about the water cycle and how it can impact different environments and human activities.